If x= (4/5)^-2 divided by (1/4)^2,find the value of x^-1
can u plz telll the ans

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.